大庆油田二类油层聚合物驱注入参数的优选  

Optimization of the injection parameters of sub-layers polymer flooding in Daqing Oil Field

作　　者：张晓芹[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油学院学报》2005年第4期40-42,54,共4页Journal of Daqing Petroleum Institute

摘　　要：为确定二类油层的注入参数,根据室内物理模拟实验、数值模拟和现场资料分析,研究了二类油层的注聚对象.引入聚驱控制程度概念,进行了二类油层注聚先导性矿场试验.研究结果表明:在注入中等相对分子质量聚合物条件下,二类油层主要注聚对象是有效渗透率大于0.1μm2的油层;在确定具体区块的聚合物相对分子质量时,必须综合考虑不同相对分子质量聚合物对聚驱控制程度和溶液黏度的影响;二类油层聚驱是可行的,但二类油层注聚应严格限制注聚对象,减少层间差异,合理匹配聚合物相对分子质量;二类油层聚驱合理注采井距为175 m.In order to get the injection parameters of sub-layers polymer flooding, according to physical simulation experiment, mathematical simulation and in-situ data, polymer injection objects of sub-layers are studied. The controlling degree of polymer flooding is introduced.At the same time, we processed pilot test of sub-layers polymer flooding. The results of study imply that in the condition of medium relative molecular mass polymer injected, the main object of polymer flooding is the layers with its effective permeability beyond 0.1 μm^2. When we select polymer relative molecular mass of the given tract for injection, the controlling degree of polymer flooding and solution viscosity should be considered. But the injection object should be strict in sub-layers polymer flooding. Minimizing the difference of formation and selecting rational polymer relative molecular mass also should be considered. The rational injection-production well spacing for sub-layers polymer flooding is 175 m.

关 键 词：二类油层 大庆油田 聚合物驱 相对分子质量 注入速度 注入参数 先导性矿场试验 优选 物理模拟实验 控制程度 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TG174.442[金属学及工艺—金属表面处理]